Stanchion



J. A BULLOCK.

smmcmow. APPLICATION FILED JAN. 20,1919

Patented Feb. 10,1928.

2 SHEETS-SHEET 2.

$14 ua u fo z GCtOZ/" IJ osnrn a. BULLOCK, or cnivraer. Barber, New-10m:

1 STANGHION.

T0 all'rwhom it may concern:

Be it know-nthat I, Josnrrr A. BU noon, a citizen of the United States, residing at Central Bridge, in the county of Schoharie and State of New York, have invented certain new and..usefullinprovements in Stanchions, ofwhich the following is a speci fication. v

This invention relates to animal husbandry, and more especially to stanchions employing a stopv lock; and the primary ob.- ject of the same is to produce a stanchion having means to prevent it from rotating when it is open.

Other objects are to produce improved latching mechanism for holding it closed and actuating mechanism for opening and closing the yoke bars. Details are set forth below, and attention is drawn to the drawings, wherein- Figure 1 is a chion= open and Fig. 2 is an edge view thereof.

Fig. 3v is an inverted perspective detail .of the cap plate Fig. 4 is a vertical central section.

Fig. 5 is a central transverse section of the same in a closed condition.

Fig. 6 is a perspe tiv detail 0f 9 thelatches. I

Fig. 7 is a; detailed sectional view taken on the line 7+7 ofFi'gr i.

A: base 1 has a supporting bolt or pin 2 pivotally mounted in a vstep bearing 3, and to the sides of the .35 'ille pivoted front elevation of the stanupright bars 5 preferably lined on their inner faces as at 1.6;. These bars areof metal and oi u-shape in cross section, and their.

turned inward toward each upper ends are l I will call shQUlde-rs 7, each other into what bearing a triangular catch 8 whese abrupt face is disposed outward, each shoulder also having a headed pin 9-near its extremity and depending therefrom,

Mounted in an overhead support 10 1s a pendant bolt 11 squared at its upper part aslat 12,.and mountedrnonrmtamb y 1. h squared portion is a plate 13' which isv flat on its lower positely disposed radial grooves 14. Mount ed on the bolt is a rotatable head .block15, to opposite sides of which at 16 are pivoted locking arms 17 each having its outer end turned downward and pivotally support ng a "weight 18 at such point that it travels o er Specificationof Letters'latent.

ward.

face except for a pair of op beneath the squared portion Patented Feb. 10,- 1920,

Application filed Ianuary 20, 1919.. Serial No. 273,139.

the angle between the'upri ht portion of a yoke bar and its shoulder when said bar 1s swun inward. This permits the outer end of t 6 a m t e d, u w en the yoke bar is swung outward and the weight travels up in the channeled bar and over said angle near its ivot 16 each arm earrles a knob 19 which when the arm rises, engages one of the grooves 14, and thereby the head is locked againstrotation with respect to the cap plate. It follows,v there-V fore, that the stanchion may not rotate When it be ts re ope The spreader mechanism for said bars consists of a double lever 20 pivoted on the lower end of the bolt 11, a link 21 pivoted at 22 to the end of the lever, and a link 23 pivoted at 24: to the outer end of the link 21 and mounted on a vertical pivot 2,5 which n ts i ith one .o the ba A p ng.

26 r unds the l er l 0i hehead i5,

one end 27 engaging. the lever and the other end engaging a guide yet to be described,

so tht the normal tendency of the spring is to spread the upper ends of the yoke er and pen the sa e hen eit e yoke bar is moved inward, the spreader mechanism, causes the simultaneous moven o th the yoke ba nd t refo e in der t close t st nc wn, it n c sary to move only one of the yoke bars in- A gu d 0 s secured et itsmidl n th t the 1 9 4 n exte ds n both si s' fthe Same as p hap fs see n Fig; 1 t rms being o, a shape and size to receivev the h u d ed upperends of he y ke ba s, 5

h n t e la ter a moved inward,- an i hi h t nd n e neme t ith th pi 2 As the t p o ki g mere-p oted o the' eed, y st a so t wi it- This is perm tted when the stanchion closed and the arms are in their lower posi-.

tion as seen n Fig. 4, because their knobs 19 are out of engagement with the. grooves 14 in t e cap pla b t s o n as e stanchion is opened and the arms are raised, y ca no lenge turn a t e hea and guid as she P QYQEEQ: time r9914 A th s the bolt 11. Therefore, at this time, the bars 5 cannot swin on their verticalpivot.

The latching mec anism consists of a pair of L-shaped latches 40, each pivoted at its angle upon respective arms of the guide 30 at 41 and each having in its upper, arm a slot 48 to receive the tip of the catch 8. The lower arms of the two latches are connected at the rear side of the stanchion by a contractilespring, as shown at 42in Fig. 5 whose action tends normally to draw the upper arms downward and engages their slots with the catches. On the front of the stanchion a pair of levers 43 are pivoted at 44 to the guide 30, their lower ends being connected by links 45 with the lower arms of the latches, and their upper portions moving under a guide 46 and being bent outwardly and carrying thumb pieces 47.

When the latter are grasped and moved toward each other, the lower ends of the levers are swung outward and the links 45 move the lower ends of the latches outward. The result is that their upper arms disengage the catches 8 and the bars5 are'free to move outward. Asthey do so the weights 18 rise and slots with which they are provided pass astride the catches 8 aswill be clear. When the stanchion'is closed and the bars 5 again move inward, the catches automatieally engage the latches, and the same are maintained in such engagement until the device is manually unlatehed by the operator compressing the thumb pieces 47. Therefore, the animal locked in thestanchion has freedom of movement of. the head and shoulders while the stanchion is closed, but the latter must be set directly at right angles to the length of the stall before it can be opened either to release the animal or to lock an animal therein.

I The foregoing description and the drawings have reference to what maybe considered the preferred, or approved form of my invention. It is to be understood that I may make such changes in construction and arrangement and combination of parts, materials, dimensions, et cetera, as may prove expedient and fall within the scope of the appended "claims.

Having thus fully described my invention, what Iclaim as new and desire to se- ,7 lower ends to the base and having their -upper ends shouldered. and inturned, and

latch mechanism for connecting said ends with the 'headbloek when the bars are closed; of a non-rotary cap plate above said block and having grooves-in its lower' face, locking arms pivoted to opposite sides of the block andhaving knobs adapted to engage said grooves when the arms are.

raised, and means for raising their outer ends when the yoke bars are swung open.

2. In a stanchion, the" combination with a base and a superposed block mounted on alined pivots, yoke bars pivoted at their lower ends to the base and having their upper ends shouldered and inturned, andlatch mechanism for connecting said ends with the head block when the bars are closed; of a non-rotary check plate above engage said grooves when the arms are raised, and weights pivoted to the outer ends of the arms and adapted'to ride overthe shoulders of the bars as said arms are 1 swung outward and inward.

3. In a stanchion, the combination with a base and a superposed block mounted on alined pivots, a pair of yoke bars pivoted at their lower ends to said base and having their upper ends channeled and shouldered and bent inward toward each other, catches carried by said inturned ends, a channeled guide carried by said head block and within which said inturned ends slide, coacting ele ments on each end and each arm of the guide for limiting the movement of the end, latches carried by the arms of the guide for engaging said catches, and manually oper able IIIGOllEtIllSIII for tripping the latches,

of locking arms pivoted at their inner ends to said head block and with their outer ends I engaging said yoke bars, and means engagrotation of the head block. V

4. In a stanchiomthe combination with ried by the arms of the guide for engaging, said catches, and manually operable mecha-' nism for tripping the latches; of lockingarms pivoted at their inner ends to said head block and with their outerv ends engaging said yoke bars, and a non-rotary cap plate above said head block having grooves with which said arms engage when the same are raised. I

5. In a stanchion, the combination with a base and a superposed block-mounted on alined pivots, a pair of yoke bars pivoted; at their lower ends. within said base andhaving their upper ends inturned and carrying depending pins; and a channeled guide carried by said head blockand re-.' I

ceiving said inturned ends, the bottom of the arms of said guide having slots receiving sa d pins for limiting the movement of 100 ing said arms when raised to prevent the the yoke bars; latches for holding said yoke bars in set position, means for tripping the latches, and a spring actuated spreading mechanism for opening the yoke bars when unlatched.

6. In a stanchion, the combination with a base and a superposed block mounted on alined pivots, a pair of yoke bars pivoted at their lower ends within said base and having their upper ends inturned and carrying depending pins, and a channeled guide carried by said head block and receiving said inturned ends, the bottom of the arms of said guide having slots receiving said pins for limiting the movement of the yoke bars; of triangular catches carried in the arms of said yoke bars, right-angular latches pivoted at their angles to the arms of said guide and having slots to be engaged by the tips of said catches when the bars are closed, yielding means for maintaining such engagement, and manuall operable mechanism for overcoming said means and tripping the latching mechanism.

7. In a stanchion, the combination with a base and a superposed block mounted on alined pivots, a pair of yoke bars pivoted at their lower ends within said base and having their upper ends inturned and carrying depending pins, and a channeled guide carried by said head block and receiving said inturned ends, the bottom of the arms of said guide having slots receiving said pins for limiting the movement of the yoke bars;

of latch mechanism including said guide,

purpose set forth.

carried in the arms latches for maintaining said engagement with the catches, a pair oflevers pivoted to connectlons between their lower ends and the lower arms of the latches, and thumb'pieces on their upper ends, for the 8'. In a stanchion, base mounted on an upright pivot, a bolt pendant from an overhead support in line with said pivot, a head block carried by the bolt, and a channeled guide carried by the head block; of a pair of yoke arms pivoted at their lower ends to said base and having their upper ends inturned and sliding in the arms of said guide, latching mechanism holding the yoke bars closed, a double lever pivoted on the lower end of said bolt, link mechanism connecting its ends with the respective yoke bars, and a spring normally turning said lever to open the yoke bars, as described.

In testimony whereof I aflix my signature in presence of two witnesses.

JOSEPH A. BULLOCK.

Witnesses:

' CARL J. BULLOCK,

MARGARET E. Srm'rr.

the combination with a I between said ends and guide for 

